import org.apache.maven.model.path.UrlNormalizer;
import org.codehaus.plexus.interpolation.InterpolationPostProcessor;

/**
 * Ensures that expressions referring to URLs evaluate to normalized URLs.
 *
 */
class UrlNormalizingPostProcessor implements InterpolationPostProcessor {

    private static final Set<String> URL_EXPRESSIONS;

    static {
        Set<String> expressions = new HashSet<>();
        expressions.add("project.url");

            processors.add(new PathTranslatingPostProcessor(
                    getProjectPrefixes(request), TRANSLATED_PATH_EXPRESSIONS, projectDir, pathTranslator));
        }
        processors.add(new UrlNormalizingPostProcessor(urlNormalizer));
        return processors;
    }

    protected RecursionInterceptor createRecursionInterceptor(ModelBuilderRequest request) {

            processors.add(new PathTranslatingPostProcessor(
                    getProjectPrefixes(config), TRANSLATED_PATH_EXPRESSIONS, projectDir, pathTranslator));
        }
        processors.add(new UrlNormalizingPostProcessor(urlNormalizer));
        return processors;
    }

    protected RecursionInterceptor createRecursionInterceptor(ModelBuildingRequest config) {